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LEAD ARSENATE
ICSC: 0911
Peer-Review Status: 11.04.2014 Validated
Lead hydrogen arsenate
Arsenic acid, lead salt
Acid lead arsenate
Dibasic lead arsenate
CAS #: 7784-40-9 RTECS #: CG0980000
UN #: 1617
EC #: 082-011-00-0
EINECS #: 232-064-2
    Formula: PbHAsO4
Molecular mass: 347.1

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION     In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! AVOID EXPOSURE OF BREASTFEEDING WOMEN!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Sore throat. See Ingestion.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin No acute symptoms expected.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes No acute symptoms expected.  Wear safety spectacles or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Abdominal pain. Diarrhoea. Drowsiness. Headache. Nausea. Vomiting. Muscle cramps. Constipation. Confusion.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs.
Marine pollutant. 
EC Classification
Symbol: T, N; R: 45-61-23/25-33-50/53-62; S: 53-45-60-61; Note: E 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
Signal: Danger
Toxic if swallowed
May cause cancer
May damage fertility or the unborn child
Very toxic to aquatic life with long lasting effects 
skull;toxiccancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
  Store only in original container. Cool. Dry. Well closed. Keep in a well-ventilated room. Separated from strong oxidants, strong acids and food and feedstuffs. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
ODOURLESS WHITE HEAVY POWDER. 

Physical dangers
 

Chemical dangers
Reacts with strong oxidants and strong acids. Decomposes at 280°C. This produces toxic fumes. 

Occupational exposure limits
TLV (as Pb): 0.05mg/m³ as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); BEI issued; (ACGIH 2014).
TLV (as As): 0.01mg/m³ as TWA; A1 (confirmed human carcinogen); BEI issued; (ACGIH 2014).
MAK (as metal): Pb ppm; Carcinogen category: 2; Germ cell mutagen group: 3A; (DFG 2013).
MAK (as metal): As ppm; Carcinogen category: 1; Germ cell mutagen group: 3A; (DFG 2013). 

Routes of exposure
The substance can be absorbed into the body by inhalation of dust and by ingestion. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance may cause effects on the gastrointestinal tract and nervous system. 

Effects of long-term or repeated exposure
The substance may have effects on the gastrointestinal tract, nervous system, kidneys, liver and blood. This substance is carcinogenic to humans. May cause toxicity to human reproduction or development. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at ~280°C
Relative density (water = 1): 5.8
Solubility in water, g/100ml: 0.0003 (none) 
The substance is harmful to aquatic organisms. This substance may be hazardous to the environment. Special attention should be given to birds. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
Do NOT take working clothes home.
Depending on the degree of exposure, periodic medical examination is suggested. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
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    See Also:
       Toxicological Abbreviations
       Lead arsenate (FAO Meeting Report PL/1965/10/1)
       Lead arsenate (FAO/PL:1968/M/9/1)